1979
On February 13, Paul J. Audette, on behalf of a company to be incorporated, was awarded a licnec to operate a new FM station at Chicoutimi. The station would broadcast on a frequency of 96.7 MHz with effective radiated power of 28,600 watts. The applicant had originally proposed to operate with an ERP of 25,400 watts. Competing applications by Liliane Marcil (25,600 watts on 96.7 MHz) and Jacques Sebag (1340 kHz at Jonquiere) were denied. A realistic proposal together with Audette's extensive experience and knowledge of the area were decisive factors in the granting of the licence to him. 
 
CJAB-FM began broadcasting on May 25. 

1981
On November 5, CJAB was authorized to add a rebroadcast transmitter at Chambord. It would use a frequency of 95.5 MHz with an effective radiated power of 3,240 watts. CJAB-FM is to provide coverage of events in the Lac St-Jean area.

1983

On July 25, CJAB-FM Inc. was given approval to change frequency from 96.7 MHz to 94.5 MHz, increase effective radiated power from 28,600 watts to 56,000 watts, and to move the transmitter site to Mount Valin. With these technical changes, CJAB would be able to also serve Chambord from the main transmitter site and would not need the earlier authorized rebroadcast transmitter.
 

1984
On January 11, the CRTC renewed CJAB-FM's licence until September 30, 1985.

1985
On December 20, approval was given for the transfer of effective control of CJAB-FM Inc., through the transfer of 1,000 Class A voting shares and 4,000 Class B non-voting shares from Gestion P. J. Audette Inc. to Radio Saguenay Ltée, which would now hold all of the shares of CJAB-FM Inc. Radio Saguenay Ltée also owned CKRS-AM Jonquière.

1987
CJAB was granted (December 1) a decrease in effective radiated power from 56,000 watts to 44,200 watts. CJAB’s tower was noted as being at Mont Valin.

1989
On June 21, CJAB had its licence renewed and it was authorized to broadcast 63 hours of locally-produced automated programming weekly, between 6 a.m. and midnight. The automation system would permit program hosts or on-duty news staff to interrupt the programming at any time.

1992
On August 21, the CRTC approved an application by CJAB-FM Inc. to transfer 100% of its issued and outstanding common voting shares from Radio Saguenay Ltée. to Radiomutuel Inc. Radiomutuel would subsequently amalgamate with CJAB-FM Inc. At the same time, an application by 165561 Canada Inc., a wholly-owned subsidiary of Radiomutuel to acquire CKRS Jonquière, currently owned by Radio Saguenay Ltée, was also approved.

1997
On February 6, Radiomutuel inc. received permission to acquire CJAB-FM from CJAB-FM inc. as part of an intra-corporate reorganization.

2000
On January 12, approval was granted for Radiomutuel inc. to transfer effective control and ownership of its broadcasting undertakings from Radiomutuel to Astral Communications inc. 

2003
On May 2, Astral Media Inc. received approval for an intracorporate reorganization within its group. The reorganization involves the following transactions: a) the amalgamation of Radiomedia and Astral Radio Québec to form Amalco 1, a wholly-owned subsidiary of Astral Radio; b) the transfer of Radio Etchemin voting shares, held by Astral Radio, to Amalco 1; c) the transfer of Astral Radio voting shares, held by Astral Acquisition Inc., to Newco, a new wholly-owned subsidiary of Astral Acquisition; and d) the amalgamation of Newco and Astral Radio to form Amalco 2, a wholly-owned subsidiary of Astral Acquisition. The ultimate would continue to be exercised by Astral Media, owned by the Greenberg family.
      

On October 21 the CRTC renewed CJAB-FM's licence until August 31, 2010. 

2009
In August, Astral's chain of "Energie FM" stations changed their name to "NRJ" (pronounced Energie in French). The change was part of a licensing deal with NRJ-FM in France.

2010
On November 30, the CRTC renewed CJAB's licence until August 31, 2017.

2013
On June 27, 2013, after a previous such application had been denied in 2012, the CRTC approved an application by Astral Media Inc. to sell its pay and specialty television channels, conventional television stations and radio stations to BCE Inc., including CJAB-FM.

                                                  Bill Dulmage - Updated July 2013